@BOOK{ Book!D - 94792554,
AUTHOR = "/ (by)A, Betekhtin",
TITLE = "A Course of mineralogy",
LIBRARY= "کتابخانه مرکزی و مرکز اسناد دانشگاه اراک",
SUBJECT = "Mineralogy",
URL = "/book/94792554/A-Course-of-mineralogy/"}